OVERVIEW: The SUT Mod 1 is a heavyweight, wire-guided, dual-purpose torpedo (ASW & ASuW) developed by West Germany and entering modernized service for submarine and surface launch. It offers both passive and active acoustic homing and extends SUT capabilities for contemporary naval threats.

DETAILS: "SUT" stands for Surface and Underwater Target, reflecting its ability to engage both submarines and surface vessels . The Mod 1 variant, introduced in the 1970s, retained the 533 mm diameter and electric (silver‑zinc battery) propulsion of the original while adding enhanced acoustic seeker sensitivity, improved wire-guidance reliability, and updated internal guidance software. It maintained the large 259 kg warhead, selectable speeds up to 35 knots, and maximum range of about 30 km. Export versions were configured to meet specific operator requirements and remained in widespread service, often upgraded under national programs.

TYPE: Heavyweight Dual‑Purpose Guided Torpedo

FUNCTION: The SUT Mod 1 is launched from 533 mm submarine or shipboard torpedo tubes. It travels under wire guidance during the initial and mid-course phases and then engages targets using passive acoustic homing (with active modes optionally available) to strike submarines or surface vessels.

NOTE:
IOC: 1967 (original SUT), early‑1980s (Mod 1)
Manufacturer: West Germany (Atlas Elektronik)
Operators: Argentina, Chile, Colombia, India, Indonesia, Peru, Portugal, South Korea, Taiwan, Turkey, Venezuela, ...

SOURCE: Jane’s Naval Weapon Systems; Federation of American Scientists (FAS): https://man.fas.org/dod-101/sys/ship/weaps/index.html; GlobalSecurity.org: https://www.globalsecurity.org/military/world/europe/sut.htm; Military-Today: https://www.military-today.com/navy/sut.htm; Wikipedia: https://en.wikipedia.org/wiki/SUT_(torpedo)
